Light-emitting device having light-emissive particles partially coated with light-reflective or/and getter material
AssigneesCandescent Technologies Corporation, Candescent Intellectual Property Services, Inc., Sony Corporation
InventorsJohn D. Porter, Roger A. Pearson, Kazuo Kajiwara, Haruo Kato, Lawrence S. Pan, Shiyou Pei, Theodore S. Fahlen
Life of this patent
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Abstract
A light-emitting device (52) suitable for a flat-panel cathode-ray tube display contains a light-emissive region (66) formed over a plate (64). The light-emissive region contains a plurality of light-emissive particles (72). Part of the outer surface of each light-emissive particle is conformally covered with a coating (74) that provides light reflection or/and gettering.
Claims72
A structure comprising:
- a plate;
- a light-emissive region overlying light-transmissive material of the plate and comprising a plurality of light-emissive particles each having an outer surface;
- and
- a group of light-reflective coatings substantially reflective of visible light, each light-reflective coating generally conforrnally overlying part of the outer surface of a corresponding different one of the light-emissive particles so as to be spaced apart from where that light-emissive particle is closest to the plate.
A structure comprising:
- a plate;
- a light-emissive region overlying light-transmissive material of the plate and comprising a plurality of light-emissive particles each having an outer surface;
- and
- a group of coatings comprising at least one Group IIIB (13) metal, each coating generally conformally overlying part of the outer surface of a corresponding different one of the light-emissive particles so as to be spaced apart from where that light-emissive particle is closest to the plate.
A structure comprising:
- a plate;
- a light-emissive region overlying light-transmissive material of the plate and comprising a plurality of light-emissive particles for emitting blue light, each light-emissive particle having an outer surface;
- and
- a group of coatings comprising at least one of boron, aluminum, gallium, silver, indium, and thallium, each coating generally conformally overlying part of the outer surface of a corresponding different one of the light-emissive particles so as to be spaced apart from where that light-emissive particle is closest to the plate.
A structure comprising:
- a plate;
- a light-emissive region overlying light-transmissive material of the plate and comprising a plurality of light-emissive particles for emitting green light, each light-emissive particle having an outer surface;
- and
- a group of coatings comprising at least one of boron, aluminum, copper, gallium, indium, and thallium, each coating generally conformally overlying part of the outer surface of a corresponding different one of the light-emissive particles so as to be spaced apart from where that light-emissive particle is closest to the plate.
A structure comprising:
- a plate;
- a light-emissive region overlying light-transmissive material of the plate and comprising a plurality of light-emissive particles each having an outer surface;
- and
- a group of coatings comprising at least one of beryllium, boron, magnesium, aluminum, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, gallium, zirconium, niobium, molybdenum, palladium, silver, indium, barium, tantalum, tungsten, platinum, thallium, lead, thorium, and oxide of at least one of magnesium, chromium, manganese, cobalt, nickel, and lead, each coating generally conformally overlying part of the outer surface of a corresponding different one of the light-emissive particles so as to be spaced apart from where that light-emissive particle is closest to the plate.
A structure comprising:
- a plate;
- a light-emissive region overlying light-transmissive material of the plate and comprising a plurality of light-emissive particles each having an outer surface;
- and
- a group of getter coatings, each generally conformally overlying part of the outer surface of a corresponding one of the light-emissive particles so as to be spaced apart from where that light-emissive particle is closest to the plate.
A structure comprising:
- a plate;
- a light-emissive region overlying light-transmissive material of the plate and comprising a plurality of light-emissive particles each having an outer surface;
- and
- a group of light-reflective coatings consisting largely of non-oxidized metal, each light-reflective coating generally conformally overlying part of the outer surface of a corresponding different one of the light-emissive particles so as to be spaced apart from where that light-emissive particle is closest to the plate.
A structure comprising:
- a plate;
- a multiplicity of laterally separated light-emissive regions overlying light-transmissive material of the plate, each light-emissive region comprising a plurality of light-emissive particles each having an outer surface;
- and
- a like multiplicity of groups of light-reflective coatings substantially reflective of visible light, the groups of light-reflective coatings respectively corresponding to the light-emissive regions, each light-reflective coating of each group generally conformally overlying part of the outer surface of a corresponding different one of the light-emissive particles of the corresponding light-emissive region so as to be spaced apart from where that light-emissive particle is closest to the plate.
A structure comprising:
- a plate;
- a multiplicity of laterally separated light-emissive regions overlying light-transmissive material of the plate, each light-emissive region comprising a plurality of light-emissive particles each having an outer surface;
- and
- a like multiplicity of groups of coatings comprising at least one of beryllium, boron, magnesium, aluminum, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, gallium, zirconium, niobium, molybdenum, palladium, silver, indium, barium, tantalum, tungsten, platinum, thallium, lead, thorium, and oxide of at least one of magnesium, chromium, manganese, cobalt, nickel, and lead, the groups of coatings respectively corresponding to the light-emissive regions, each coating of each group generally conformally overlying part of the outer surface of a corresponding different one of the light-emissive particles of the corresponding light-emissive region so as to be spaced apart from where that light-emissive particle is closest to the plate.
A structure comprising:
- a plate;
- a multiplicity of laterally separated light-emissive regions overlying light-transmissive material of the plate, each light-emissive region comprising a plurality of light-emissive particles each having an outer surface;
- and
- a like multiplicity of groups of getter coatings, the groups of getter coatings respectively corresponding to the light-emissive regions, each getter coating of each group generally conformally overlying part of the outer surface of a corresponding different one of the light-emissive particles of the corresponding light-emissive region so as to be spaced apart from where that light-emissive particle is closest to the plate.
Dependencies are inferred from the claim text.